Loose Parts Bag; Minimum Clearances To Combustible Materials - International comfort products A Series Installation Instructions Manual

Table 1 – Minimum Clearances to Combustible Materials for
All Units
POSITION
REAR
FRONT
(Combustion air openings in
furnace and in structure)
Required for service
All Sides of Supply Plenum
Sides
Vent
Top of Furnace
* Consult local building codes.
** Additional clearance is required for condensate trap installation.
NOTE: Furnace edge contact is permissible with combustible
materials unless local codes state otherwise.
12. Maintain a 1- -in. (25 mm) clearance from combustible ma-
terials to supply air ductwork for a distance of 36 in. (914
mm) horizontally from the furnace. See NFPA 90B or local
code for further requirements.
13. These furnaces SHALL NOT be installed directly on carpet-
ing, combustible tile, or any other combustible material oth-
er than wood flooring. Clearance to combustible construc-
tion information (Table 1).
NOTICE
Important Installation and Start- -up Procedures
Failure to follow this procedure may result in a nuisance
smoke or odor complaint.
The manifold pressure, gas rate by meter clocking,
temperature rise and operation must be checked after
installation. Minor smoke and odor may be present
temporarily after start- -up from the manufacturing process.
Some occupants are more sensitive to this minor smoke and
odor. It is recommended that doors and windows be open
during the first heat cycle.
INTRODUCTION
THE BLOWER IS LOCATED
TO THE RIGHT OF THE
BURNER SECTION, AND
CONDITIONED AIR IS
DISCHARGED TO THE LEFT.
NOTE: Downflow not permitted.
Fig. 2 - - Upflow/Horizontal Orientations
This Upflow/Horizontal Category IV condensing furnace is CSA
design- -certified as a direct- -vent (2- -pipe) furnace using outside air
for combustion. (Fig. 2). It is also certified as a non- -direct vent
(1- -pipe) furnace using indoor air for combustion or air from a
well- -ventilated attic or crawl space, where permitted by local code.
The furnace is factory- -shipped for use
cannot be converted to propane gas.
440 01 4601 01
CLEARANCE
1 in.
1 in.
24 in.*
1 in.
1 in. **
0
1 in.
THE BLOWER IS
LOCATED BELOW THE
BURNER SECTION, AND
CONDITIONED AIR IS
DISCHARGED UPWARD.
THE BLOWER IS
LOCATED TO THE LEFT
OF THE BURNER SECTION,
AND CONDITIONED AIR IS
DISCHARGED TO THE RIGHT.
A190213
with natural gas only and
Specifications subject to change without notice.
These furnaces are not approved for installation in recreational
vehicles outdoors, or in manufactured/mobile homes. When
installed on a wood floor, the furnace must be installed on a
factory- -supplied accessory combustible floor base or evaporator
coil casing.
This furnace is designed for minimum continuous return- -air
temperature of 60_F (15_C) db or intermittent operation down to
55_F (13_C) db such as when used with a night setback
thermostat. Return-air temperature must not exceed 80_F (27_C)
db. Failure to follow these return-air temperature limits may affect
reliability of heat exchangers, motors, and controls (Fig. 3).
SUPPLY AIR
SEE PRODUCT DATA FOR
ACCESSORY CONDENSATE
TRAP HEATER AND CONDENSATE
DRAIN LINE PROTECTION.
Fig. 3 - - Freeze Protection and Return Air Temperature
The furnace should be sized to provide 100 percent of the design
heating load requirement plus any margin that occurs because of
furnace model size capacity increments. None of the furnace
model sizes can be used if the heating load is less than half of the
furnace model's output capacity.
Contractors of America (Manual J and S); American Society of
Heating, Refrigerating, and Air-Conditioning Engineers; or other
approved engineering method to calculate heating load estimates
and select the furnace. Excessive oversizing of the furnace may
cause the furnace and/or vent to fail prematurely, customer
discomfort and/or vent freezing.
Failure to follow these guidelines is considered faulty installation
and/or misapplication of the furnace; and resulting failure, damage,
or repairs may impact warranty coverage.
For accessory installation details, refer to the applicable instruction
literature.
NOTE: Remove all shipping materials, loose
literature before operating the furnace. The loose parts bag contains
more parts than needed (Table 2). The Ultra Low NOx condensing
furnaces also contain an additional parts bag for the condensate
trap, see Condensate Trap section.
Table 2 – Loose Parts Bag
DESCRIPTION
Air Intake Pipe Flange
Vent Pipe Flange
Pipe Flange Gaskets
Sharp Tip Screws (Vent and Inlet Flanges)
Vent Pipe Coupling
Vent Pipe Coupling Clamps
Gas Line Grommet
Junction Box Cover
Junction Box Base
Green Ground Screw
Blunt Tip Screws (Junction Box)
Thermostat Wire Grommet
Pressure Switch Tube
Rubber Drain Elbow
Drain Tube Clamps
1/2---in. CPVC to 3/4---in. PVC Pipe Adapter
80 / 27˚C
60
/ 16˚C
A150573
Use Air Conditioning
parts bags, and
NOT
QTY
NEEDED
1
1
2
10
1
2
1
1
1
1
3
1
1 X
1 spare
4 X
1 X
5